Rename METADATA.android file to just METADATA am: f35b3ed30c am: 2caca6be4a am: 3454f4eae5

Original change: https://android-review.googlesource.com/c/platform/external/libchrome-gestures/+/2855735

Change-Id: Ia137b0bdc104eb4dff2fa95d68a2492484e6074b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>